Magnetostrictive displacement sensor for precision control

• Main Authors: LI ZHIHAO, HUO JINGRUN, CAI CHANG, ZHAN XIAOHUANG, YUAN XUELAN, HUANG YONGDONG, LU QUANGUO, LIU JINFENG, HE YULING
• Format: Patent
• Language: Chinese; English
• Published: 01.04.2022
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention discloses a magnetostrictive displacement sensor for precision control, which comprises a base, a permanent magnet, a magnetostrictive sensitive element and a pickup detection device, two sides of the base are respectively provided with a fixed end plate, the magnetostrictive sensitive element is arranged between the two fixed end plates, one side of the base is provided with the pickup detection device capable of horizontally moving, and the pickup detection device is arranged on the other side of the base. A permanent magnet is mounted on the other side through a stand column; the pickup detection device comprises a movable sliding block, a coil framework, an induction coil and a supporting rod, the induction coil is tightly wound on the coil framework, the coil framework is fixedly connected to the movable sliding block through the supporting rod, and the movable sliding block is installed on the base in a sliding mode; and the magnetostrictive sensitive element horizontally passes through th